package 练习程序;

public class test {
    public static void main(String[] args) {
        int x = 0;
        System.out.println(++x);
        int x1 = 0;
        System.out.println(x1 + 1);
        int x2 = 0;
        System.out.println(x2++);
        int x3 = 0;
        System.out.println(x3 = x3 + 1);


    }
}